In recent years, the country has witnessed a surge in ultra-nationalist Buddhism led by the Bodu Bala Sena, the country's most powerful Buddhist organization, which has pledged to defend the religion.
10:28 a.m. ET, April 21, 2019
Obama says blasts "attack on humanity"
Former US President Barack Obama called the Easter Sunday bombings "an attack on humanity."
11:09 a.m. ET, April 21, 2019
Wave of bombings happened a month before Sri Lanka marks key civil war anniversary
It's still not clear who was behind Sunday's bombings.
What is apparent, is that these coordinated Easter Sunday attacks -- carried out at eight sites, including churches and hotels across Sri Lanka -- were targeted at Christians celebrating one of their holiest days of the year.
The blasts also come a month before Sri Lanka is due to mark the 10-year anniversary of the end of its civil war in 2009.
CNN's International Diplomatic Editor Nic Robertson has this analysis:
"It is a very confused picture in terms of who may or may not be responsible. The Sri Lankan civil war ended 10 years ago, a 25 year long civil war, and the Tamil separatists there were a secular group. It would be very, very unlike them and their tactics ever to attack churches and particularly on such a holy day." "It has the hallmarks -- or is intended to have the hallmarks -- of Islamic extremists. But, again, these kinds of groups are unknown in Sri Lanka."
9:59 a.m. ET, April 21, 2019
BREAKING: Chinese among those killed in attack
From Nanlin Fang and Steven Jiang in Beijing
Two Chinese cousins were killed in the attack, according Chinese state media. Their families identified the bodies.
9:29 a.m. ET, April 21, 2019
Sri Lankan Special Task Force conducts house raid
Sri Lanka's Special Task Force (STF) raided a house in Orugodawatta, in the capital Colombo, following a series of blasts across the country Sunday.
8:58 a.m. ET, April 21, 2019
30 foreigners among hundreds killed
Among the dead are around 30 foreigners, according to Sri Lankan Minister of Economic Reforms and Public Distribution, Harsha de Silva, citing defense officials.
Two Turkish citizens, according to Turkish state news agency Anadolu.
One Dutch person, according to Netherlands Minister of Foreign Affairs, Stef Blok.
Some British citizens were also "caught in the blast," said British High Commissioner to Sri Lanka, James Dauris. The Commissioner was unable to put a figure on the number affected.
8:36 a.m. ET, April 21, 2019
Church roofs destroyed, pools of blood on floors
Journalists have described the horror inside churches and hotels destroyed in Sunday's coordinated attacks.
At St. Anthony's Church in Colombo, one AFP photographer saw bodies lying on the floor, some draped with scarves and clothes.
The photographer said much of the church roof had been blown off in the explosion, with tiles, glass and splintered wood littering the floor -- along with pools of blood.
8:15 a.m. ET, April 21, 2019
BREAKING: Death toll rises to 207
The death toll from the blasts has risen to 207, according to a police spokesman.
450 people were injured in eight coordinated attacks across the country Sunday.